申请人:Kao Corporation
公开号:EP0503508A1
公开(公告)日:1992-09-16
A vesicle comprising, as a membrane-forming ingredient, a phosphoric ester represented by the following general formula (2):
wherein R¹ means a hydrogen atom or an alkyl group having 1-4 carbon atoms, R² denotes an alkylene group having 1-6 carbon atoms, R³ and R⁴ may be identical to or different from each other and represent individually an alkyl group having 1-4 carbon atoms, R⁵ stands for an alkylene group having 2-3 carbon atoms, R⁶ means a linear or branched alkyl or alkenyl group which may be substituted by halogen atoms and has 8-36 carbon atoms, a phenyl group which has been substituted by a linear or branched alkyl group having 3-15 carbon atoms or a group represented by the following general formula (3) or (4):
in which R⁹ and R¹⁰ may be identical to or different from each other and mean individually a hydrogen atom, a saturated or unsaturated, linear or branched acyl group having 5-36 carbon atoms or a linear or branched alkyl or alkenyl group having 5-36 carbon atoms, provided that both R⁹ and R¹⁰ are not a hydrogen atom at the same time, A denotes NH or an oxygen atom, and n stands for a number of from 0-30, and a polymeric vesicle comprising, as a membrane-forming ingredient, a polymer of the phosphoric ester represented by the general formula (2).
一种囊泡,其成膜成分是由以下通式(2)代表的磷酸酯:
其中,R¹ 表示氢原子或具有 1-4 个碳原子的烷基,R² 表示具有 1-6 个碳原子的亚烷基,R³ 和 R⁴ 可以彼此相同或不同,并分别代表具有 1-4 个碳原子的烷基,R⁵ 代表具有 2-3 个碳原子的亚烷基、R⁶ 表示可被卤素原子取代且具有 8-36 个碳原子的直链或支链烷基或烯基、被具有 3-15 个碳原子的直链或支链烷基取代的苯基或由以下通式 (3) 或 (4) 代表的基团:
其中 R⁹和 R¹⁰ 可以彼此相同或不同,分别指氢原子、具有 5-36 个碳原子的饱和或不饱和、直链或支链酰基或具有 5-36 个碳原子的直链或支链烷基或烯基、R⁹ 和 R¹⁰ 不能同时为氢原子,A 表示 NH 或氧原子,n 代表 0-30 之间的数字,以及一种聚合囊泡,其中包含通式(2)所代表的磷酸酯聚合物作为成膜成分。